Meanwhile, Tropical Depression Eight is spinning about 415 miles from Port O'Connor, Texas.
And in the Atlantic, Tropical Storm Gonzalo is expected to become a hurricane Friday as it moves west toward the Windward Islands of the Caribbean.
Far out in the Pacific Ocean, Hurricane Douglas intensified as it churned west toward the Hawaiian Islands on a track to potentially bring strong winds, heavy rainfall and flash flooding to the island chain over the weekend, weather forecasters said.
As of midday Thursday, Douglas was a Category 3 hurricane with sustained winds of 120 mph.
It was located about 1,335 miles east-southeast of Hilo, Hawaii.
Some additional strengthening is possible Thursday, the National Hurricane Center said, which added that "gradual weakening is forecast to begin by Friday."
On the U.S. mainland, the Texas coast was bracing for the arrival of Tropical Depression Eight, currently spinning in the Gulf of Mexico some 380 miles from Port O'Connor, Texas.
A tropical storm watch was issued for much of the Texas coast.
The center of the depression is expected to move across the northwestern Gulf of Mexico on Thursday and Friday and make landfall along the Texas coast on Saturday, the hurricane center said.
Slow strengthening is expected and the depression could become a tropical storm in a day or so.
If its wind speed reaches 39 mph, it would be named Tropical Storm Hanna.
If the storm reaches tropical-storm status, it could earn the distinction of being the earliest recorded "H" named storm on record in the Atlantic basin, AccuWeather said.
In the Atlantic Ocean, Tropical Storm Gonzalo continued to churn west toward the Windward Islands of the Caribbean, according to the hurricane center.
As of midday Thursday, Gonzalo was centered about 850 miles east of the southern Windward Islands with maximum sustained winds of 60 mph.
It was heading west at 14 mph.
Gonzalo is expected to become a hurricane on Friday, and a Hurricane Watch is in effect for Barbados and St. Vincent and the Grenadines.
Up to 7 inches of rain was possible on some of the islands, the hurricane center said, which could lead to "life-threatening flash floods." ■
Monsoonal moisture and upper-level impulses will aid in producing diurnal showers and thunderstorms with heavy rain from the Northern/Central Rockies to the Southwest/Southeastern California through Sunday.